Seiko Cal. 5280 - 920

The Seiko 5280-920 represents an important milestone in Seiko's 1971 lineup. Powered by the 5280 caliber with 28j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-9cd20fc175a6]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1971

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